I put some SLP headers on my Formula a while back. Actually I had them put on and was wondering is my 02 sensor now located further back than stock? Should I have changed it? Can someone please refresh me on what the 02 sensor does? Thanks for any info.

[This message has been edited by Raymond 5.7 89 Formula (edited February 23, 2001).]

 

O2 sensor maintains 14:7 air fuel ratio.

Use a scanner, if it is operating fine then don't change it. I changed mine just for the hell of it when I did my SLP headers

------------------
91 Formula
305 TPI 5speed
1LE/G92/WS6

Paxton SN92 polished kit, SLP airfoil, ported/polished plenum, March pulleys, Crane AFPR(43psi),Crane Gold 1.6rrs,MSD coil,MSD6AL,MSD boost-master,Holley 9mm wires,Ac delco R43ts plugs,custom chip,Ford SVO 24# injectors,Bosch O2sensor, Bosch in-line pump(w/stock pump), SLP 1 5/8" headers,SLP catback,short shifter,3:73s w/Auburn posi,170* t-stat,JET 195* fan switch, Macewen white face gauges, Autometer gauges, Zoom hi-performance clutch.

 

I have had no problem with my O2 sensor as far as its location is concerned in my SLP headers. The sensor heets up fast and the ECM goes into closed loop mode quickly, as it should.



------------------
'87 L98 TPI IROCZ, AFR190 heads, 3.70 gears, ZZ9 cam, 2400 Art Carr TC, SLP 1 3/4" headers, SLP cat-back, no cat, no AC, no MAF screens, Accel manifold base & SuperRam, Edelbrock double roller timing chain, MSD ext coil & distributor, trans cooler, 52mm TB with airfoil, TB coolant bypass, AFPR(58psi), K&N filters, Hotchkis lowering springs, my custom chip, Lay Ind. ram air kit, SS Brakes 1LE upgrade 12" rotors dual piston calipers, 265/45R16 Kumho V700 tires.
ET 13.39sec @ 107.21mph
'90 Eagle Talon AWD, no rust thru 9 winters
'99 Camaro SS, red, 6-spd, T-tops, Mcleod clutch, Pro 5.0 shifter, MAF processor, Direct Flow airlid, K&N filter, next mod: 4.10 rear gears
313.7Hp & 320.6ft-lbf, ET 13.55sec @ 105.1mph

 

Same here. That is the most important thing.

If you notice it doesnt go into closed loop then you need a heated 02

 

Just saw a article in Hot Rodding magazine seems they had a problem with the stock oxygen sensor with SLP headers in a Formula like mine.